The answer is biodiversity.
For an organism to function properly all the physiological factors should be favorable. These physiological factors include water level, pH, temperature etc. To perform the basic function of the life, it is important to maintain the physiological parameter in a particular range.
In case, these physiological parameters are not balanced, then the body of the organism does not perform well and causes illness.
So, the first blank can be filled with temperature and the second blank can be filled with range.
Answer:the component materials and their arrangement
Explanation:
Bone are important for movement in animals.bones is made up of 15% water,30% collagen fibres and 55% mineral salts..bone cells are widely separated. The Collagen makes bones soft and flexible. Mineral salts makes it fragile and strong.
The osteogenic cells builds the bones and the osteoclasts breaks down older bone tissue, in order to keep the body strong.
Spongy bones contains tiny spicules that helps in strength.
It also reduces the weight of the bones .
The cells of Compact bones are arranged in the direction of stress to keep the bone strong.
They are constantly changing throughout life
Answer:
Genetic variation
Explanation:
Darwin studied that different populations of finches on Galapagos island that are descended from the same species. Some species are evolved to eat nuts and large seed, some eat small seeds and some feed on insects and nectar.
So genetic variation occurred in different populations of finches which enabled them to bring changes in their beak according to the food resource they have chosen to feed on.
So in Darwin's finches, genetic variation leads to new species which is a type of natural selection. Therefore subset of finches that can feed on large seeds and small seeds is an example of genetic variation.
